The Wacker Neuson Volute is a genuine OEM component designed for the APT8S and APT8T pump series, including standard, surge brake, electric brake, and cold weather variants. As a direct OEM replacement, this volute is manufactured to the same specifications as the original part, ensuring a proper fit and consistent hydraulic performance across all covered configurations. Whether you're servicing an APT8S Pump with Skid or an APT8T Pump with Electric Brake in cold weather operation, part number is the correct replacement to restore your pump to full working condition.
Key Features
- Genuine OEM Hydraulic Integrity: — Manufactured by Wacker Neuson to maintain the precise internal geometry required for correct flow velocity and pressure performance in centrifugal pump applications.
- Direct Drop-In Replacement: — Engineered to match the original volute housing dimensions and inlet/outlet connections, so installation follows the same procedure as the factory-fitted component.
- Broad APT Series Coverage: — Confirmed fitment across APT8S and APT8T models, including surge brake, electric brake, and cold weather configurations.
- Maintains Pump Output Performance: — A correctly fitted volute channels fluid efficiently from the impeller to the discharge port; a cracked or worn volute causes pressure loss, reduced flow rate, and potential cavitation damage.
- Verified OEM Part Number: — Sourced directly from Wacker Neuson under part number 5200021745, eliminating guesswork when cross-referencing against your machine's parts diagram.
The volute is the pump's outer casing that surrounds the impeller and converts the high-velocity fluid generated by the spinning impeller into usable pressure at the discharge outlet. Its curved internal profile is precisely shaped to manage fluid flow smoothly and efficiently — any cracking, erosion, or damage to this housing disrupts that flow path, leading to reduced pumping performance, increased wear on the impeller, and potential system cavitation. Replacing a worn or damaged volute with the correct OEM part restores the pump's designed output and protects the surrounding components from further stress.
Part Details
| Part Number | 5200021745 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Volute |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT8S Pump w/Skid | APT8S | 5200018987 |
| APT8T Pump, Surge Brake | APT8T | 5200019648, 5200019649 |
| APT8T Pump, Surge Brake, Cold Weather | APT8T CW | 5200019796, 5200019797 |
| APT8S Pump w/Skid, Cold Weather | APT8S CW | 5200019800 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
